It made sense to me that Jesse didn't attend the funeral. His sister was worried about his sobriety during a difficult time and so he was staying with her for a bit. It clearly upset him not to be there for the memorial. The whole thing may have been done for O'Hare's schedule, etc. but it works within the context…

"It’s third season—which just wrapped up in September—will now be it’s last…" There shouldn't be apostrophes in either of those "its." Goddamn it.